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Star-shaped Thiourea Derivative as Single MoleculeConductive Thin Film

机译：星形硫脲衍生物作为单分子导电薄膜

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The electronic delocalization in extended π-orbital system of conjugated organic molecules brings significant contribution and has lead for further investigation to exploit this system to be used as potential conductive thin film. In this work, a star-shaped thiourea, N~(1),N~(3),N~(5) -tris(4-(nonyloxy)phenyl)- N’ -(benzene-1,3,5 tricarbonyl) thiourea (STU) based on Donor(D)-π-Acceptor(A) system was successfully synthesized from continuous reactions of intermediate compound 4-nonyloxy aniline hydrochloride with benzene-1,3,5-tricarboxylic acid chloride prior to form active substrate in the form of film. These compounds were characterized via several spectroscopic and analytical methods namely IR, UV-Vis, CHNS elemental analysis, ~(1)H and ~(13)C NMR as well TGA analysis. The investigation of its potential as dopant system in conductive film was fabricated on ITO substrate prior to the evaluation of its conductivity properties which was carried out by Four Point Probe. The findings from the conductivity analysis revealed that the prepared film performed better and exhibited increasing conductivity up to 0.1066Scm~(-1) under maximum light intensity of 50Wm~(-2). Thus, this proposed molecular structure of A-C(O)NHC=SNHAr-D has given ideal indication to act as conductive film and has opened wide potential for various applications particularly in molecular electronic devices.
机译：共轭有机分子在扩展π轨道系统中的电子离域化做出了重大贡献，并导致进一步研究将该系统用作潜在的导电薄膜。在这项工作中，星形硫脲，N〜（1），N〜（3），N〜（5）-三（4-（壬氧基氧基）苯基）-N'-（苯-1,3,5三羰基）由中间体化合物4-壬氧基苯胺盐酸盐与苯-1,3,5-三羧酸氯化物的连续反应成功合成了基于施主（D）-π-受体（A）体系的硫脲（STU）以电影的形式。这些化合物通过几种光谱和分析方法进行了表征，即IR，UV-Vis，CHNS元素分析，〜（1）H和〜（13）C NMR以及TGA分析。在通过四点探针进行导电性能评估之前，先在ITO基板上研究其在导电膜中作为掺杂剂体系的潜力。电导率分析的结果表明，在最大光强为50Wm〜（-2）的条件下，制备的薄膜性能更好，电导率提高到0.1066Scm〜（-1）。因此，该提出的A-C（O）NHC ＝ SNHAr-D的分子结构已经给出了理想的指示，可以用作导电膜，并为各种应用特别是在分子电子器件中打开了广阔的潜力。

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